Does it need a more complicated explanation than increased budgets? 50 years ago CGI was virtually nonexistent and now it's close to photorealistic; does this t

Does it need a more complicated explanation than increased budgets? 50 years ago CGI was virtually nonexistent and now it's close to photorealistic; does this tell us deep things about how spaceships are secretly aircraft carriers and space explosions are a metaphor for Desert Storm, or is it an artefact of trying harder and paying more?